Slamed or Slammed: How To spell?
The word Slamed is misspelled against Slammed, which is past tense of "Slam"
Slammed has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings sla & ed which should not be misspelled with single 'M'
Wrong Spelling:  sla-m-ed  Correct Spelling:  sla-mm-ed 
Explore spell check of Slammed to spell without errors.